Re: New tripod for my Losmandy GM8 mount - this is how I did it :)
PL must be Poland.?
You need to eat some pirogies and the language will come to you.? Or Polish pickles....yummy.
Best, Michael
What country is the .PL web site as I found it very interesting with all the machined products but not one word is recognizable ..... Polish, Russian ???? ??
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Re: New tripod for my Losmandy GM8 mount - this is how I did it :)
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On Thu, Mar 4, 2021 at 11:10 PM bbillp < b.bill.p@...> wrote: What country is the .PL web site as I found it very interesting with all the machined products but not one word is recognizable ..... Polish, Russian ???? ??
-- Brian?
Brian Valente portfolio
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Re: New tripod for my Losmandy GM8 mount - this is how I did it :)
What country is the .PL web site as I found it very interesting with all the machined products but not one word is recognizable ..... Polish, Russian ???? ??
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Re: Backyard Pier for Losmandy GM811G
Ah i see derek beat me to it re: keeping the floor separate
You
pour the pier separate from the floor.. i.e. big ball of concrete at the bottom
and a column coming up thru the dirt.. Wrap it at ground level with foam or
cork or something, then pour the slab.. Otherwise you will see any footsteps in
your view or image..
?
In
theory.. (I haven¡¯t done t, but like everything else, I have read about it *A
LOT*..)
?
Derek
¨C 30 year Carpenter in a former (non broken) life..
?
?
I am thinking
about putting a pier in my backyard and I am not sure where to start.? This is
what I am thinking.? Would this design work?? What changes should I
consider?
Jim W.
?
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-- Brian?
Brian Valente portfolio
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Re: Backyard Pier for Losmandy GM811G
Jim it looks well conceived. Beyond your designs, usually there are some considerations for keeping the pier separate from any housing, deck, or other walkaround flooring, but i'm not sure where you are on that
we do have an MA adapter you can pop on the top of the pier and it works great
?
[Edited Message Follows]
I am thinking about putting a pier in my backyard and I am not sure where to start.??This is what I am thinking. ?Would this design work?? What changes should I consider?
Jim W.
EDIT - Max optical train weight would not exceed 40 pounds.
-- Brian?
Brian Valente portfolio
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Re: Backyard Pier for Losmandy GM811G
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Re: Backyard Pier for Losmandy GM811G
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Re: Backyard Pier for Losmandy GM811G
Granted
it¡¯s Cloudy Nights (Some people know more than others think they do), but this
one is good.. (There are tons more..)
?
?
Derek
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Re: Backyard Pier for Losmandy GM811G
You
pour the pier separate from the floor.. i.e. big ball of concrete at the bottom
and a column coming up thru the dirt.. Wrap it at ground level with foam or
cork or something, then pour the slab.. Otherwise you will see any footsteps in
your view or image..
?
In
theory.. (I haven¡¯t done t, but like everything else, I have read about it *A
LOT*..)
?
Derek
¨C 30 year Carpenter in a former (non broken) life..
?
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Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Jim Waters
Sent: Thursday, March 04, 2021
8:17 PM
To: [email protected]
Subject: [Losmandy_users_io]
Backyard Pier for Losmandy GM811G
?
I am thinking
about putting a pier in my backyard and I am not sure where to start.? This is
what I am thinking.? Would this design work?? What changes should I
consider?
Jim W.
?
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AVG antivirus software.
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Re: Backyard Pier for Losmandy GM811G
I can't really speak to the design, but I'll share what I did as an alternative to a pier:?http://astropifi.blogspot.com/2021/02/stable-tripod-base.html
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Re: Backyard Pier for Losmandy GM811G
Hi Sonny
"tripping hazard"? Yes.? That is a concern but its off in a corner of the yard.? I put it 4" above grade because we get dumped on and the yard floods out due to monsoons once or twice a year.? I don't want the metal pier and bolts in the water.? Thanks for looking at the design
Jim W.
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Re: Backyard Pier for Losmandy GM811G
Looks OK to my untrained eye, Jim.
Hopefully others here do have some knowledgeable input for you.
Or maybe some of the folks over at Cloudy Nights.
Will it be a tripping hazard with the monolith 4" above grade? That would be one of my concerns.
--
SonnyE
(I suggest viewed in full screen)
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Re: Suggestions for additions to G11 purchase
Great News, Tony! Congratulations!
I can't help with the Raspbery Pi, I'm a PC Windose nut.
So you must be close in if you are going to pick up.
I picked mine up a year ago at the factory. Got to meet the group.
Enjoy! They are great folks.
--
SonnyE
(I suggest viewed in full screen)
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Re: Is this typical guiding performance for an older g8? RMS around.25 px , 1.0 to 1.6 arc seconds
Thanks for the ideas and comments.? ?Yes, the tracking on the images seems to be OK, so I guess the backlash is more academic than troublesome at this point.? ?(I checked the saddle and all is tight and "flat").? ? ?It just bugs me knowing it is there!
Question:? ?When I hold the motor free of the mount, there is a tiny bit of play hack and forth as I twist the motor axle.? ?Is this normal?? ?(It is similar for both motors.)??
Gil
BTW, Robert would be a fine name!? ?:? )? ? ??
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Backyard Pier for Losmandy GM811G
I am thinking about putting a pier in my backyard and I am not sure where to start.??This is what I am thinking. ?Would this design work?? What changes should I consider?
Jim W.
EDIT - Max optical train weight would not exceed 40 pounds.
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Hi Tom,
The rest of our gang is wondering what we are talking about.? Here's a quick recap of our conversation:
Me.? ? ? ? ? ? ? ? ? ? ? ? ? ? Tom Problem?? ? ?I have a 5 sec DEC backlash Does DEC wobble?? ? ? ? ? ? ? ? ? ? ? ? No. Does worm move left to right?? ? No. Is Oldham coupler loose?? ? ? ? ? ? No. Is Dovetail loose?? ? ? ? ? ? ? ? ? ? ? ? ? No. Does DEC rotate if worm is not moving?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? No.
Me: I give up.??
Tom:. Problem is solved after I changed the worm.??
So somehow when you changed your worm, you tightened something that must have been loose....who knows what.
? Glad your problem is solved!? Go get some pics and have fun,
Michael
On Thu, Mar 4, 2021, 4:31 PM wa1vta01452 < loeblt@...> wrote: Hi Michael, appreciate the phone chat today. I changed the steel worm with another older one I had and the 5 second backlash is gone. No idea why but I'm not complaining.
Tom
-- Brian?
Brian Valente portfolio
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Hi Tom,
The rest of our gang is wondering what we are talking about.? Here's a quick recap of our conversation:
Me.? ? ? ? ? ? ? ? ? ? ? ? ? ? Tom Problem?? ? ?I have a 5 sec DEC backlash Does DEC wobble?? ? ? ? ? ? ? ? ? ? ? ? No. Does worm move left to right?? ? No. Is Oldham coupler loose?? ? ? ? ? ? No. Is Dovetail loose?? ? ? ? ? ? ? ? ? ? ? ? ? No. Does DEC rotate if worm is not moving?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? No.
Me: I give up.??
Tom:. Problem is solved after I changed the worm.??
So somehow when you changed your worm, you tightened something that must have been loose....who knows what.
? Glad your problem is solved!? Go get some pics and have fun,
Michael
On Thu, Mar 4, 2021, 4:31 PM wa1vta01452 < loeblt@...> wrote: Hi Michael, appreciate the phone chat today. I changed the steel worm with another older one I had and the 5 second backlash is gone. No idea why but I'm not complaining.
Tom
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Re: Suggestions for additions to G11 purchase
Hello,
I'm in same boat, just got word the G11G I ordered is ready for pick-up.
Great suggestions here, just wanted to double check on connectivity hardware... I have ordered a GL.iNet GL-AR750S-Ext (Slate), based on the recommendations here in previous topics. Has anyone connected that to a?Raspberry Pi 4 8GB running Astroberry??
Thanks,
Tony
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Hi Michael, appreciate the phone chat today. I changed the steel worm with another older one I had and the 5 second backlash is gone. No idea why but I'm not complaining.
Tom
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Re: Servicing My 17 yr Old G11 Mount
Hi Terry,
Nice work on cleaning your mount up.
Look to Mark Crossley's website ? Mark has a whole section about G11 assembly ideas and good tips.
The blue arrow bolts are the Elevation lock down bolts.? Since you need to loosen them to adjust elevation to get polar aligned, you don't really want those tightly locked.? So...what to do...?
I like to put in 3/8 ID Belleville spring washers at various points of the mount.? When these cup shaped spring washers are compressed, they put a variable amount of force on the bolt.? The present flat washers are either fully on or fully off.? You have no adjustment of their force.? The Belleville washers give you this variable pressure.? It especially helps during polar alignment so your vertical acid does not go totally lax during AZ and Elevation adjustments.?
I also put "Tee- handles" on the bolts to give me a way to hand tighten those bolt without needing a wrench (in the dark no less).? So I use either white or colored tee handles like red or yellow to see what I'm doing.? Here are some pictures of where I use these.
Not also that the mount head must rotate in Azimuth too.? So I put the same kind of springs on my AZ bolts.? And under the mount center (see picture if that bolt head) is yet another 3/8-16 bolt...I put springs and flat washers on that to keep the axis center under compression.? You get the idea!
?
Hello Fellow Losmandy Users
I've just started to strip down and service my 17 yr old G11 mount. Tanya, at HGM, kindly confirmed it's age from the Serial Number found on the underside of the Mount base.
I am the sole owner of this mount and slightly ashamed to admit that I have never carried out any maintenance or tuning adjustments ever, until now.
The mount has been sitting on my concrete pier for this entire time covered in the most part with just a tarp but laterly, since July 2020, with a more
upmarket Telegizmo 325I cover. In these 17 years there was an extended period of non-use which I estimate to be around 8-9 yrs. I restarted using the mount in July 2020 and got
some great help from people here at that time, mostly on what to watch for when re-commissioning the Gemini - 1.
I was some what apprehensive about starting this project but to my great surprise am finding the actual 'breaking down' of the mount into its individual components
to be really pleasantly straight forward and rewarding, mostly due probably to the mount's modularity. The only tools needed so far have been Hex/Allen keys.
So far I've degreased the two roller bearings found in each axis and got these spinning nicely ready for some SuperLube, I am using a citrus based degreaser from 'Muc-Off'. I believe the upper bearings were ceased but now spin freely.
I've removed the old grease from both worms and worm-wheels, without affecting the worm adjustment, in preparation for regreasing both worm and worm-wheel with a small amount of SuperLube.
Have also checked the small screws on the Oldham couplers for tightness - all ok and no loose screws.
Clutch disks and many other parts have been degreased and cleaned. Progress is good and I am enjoying the experience and it's given me the confidence to carry out this work at much
smaller interval than 17yrs in the future. I might post a photo of the mount parts before re-assembly, hopefully tomorrow [Friday].
But to my questions that I am hoping someone will be able to help me with.
Q1: I have attached an image of the mount base [Polar Block' section [?]. I've marked [with Red/Blue Arrows] the two screws located on each side of the mount and am thinking that when polar aligning
the mount that the Red highlighted central screw is the point around which the Alitude adjustment pivots and should not be loosened when PA. The Blue arrow indicates the Altitude locking screws, one each side, which do
need slackening off during PA adjustment and then retightened. Have I interpretted their purpose correctly?
Q2: I am planning on dissassembling the 'Polar Block' on the mount base for access to, cleaning and relube of the long threaded Altitude and Azimuth rods etc and was wondering if it is 'safe' to remove all four of these screws.
I have some mount dissassembly instructions for a G11 but it is based on an earlier mount [badged as Celestron] but this only has the single Red pivot /locking screws.
Thanks in advance for any help with these queries.
Terry [uk]
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Michael Herman
Bill P.
Jamie Amendolagine
McFarlane, Gilbert